All praise is due to Allah, and may peace and blessings be upon the Messenger of Allah. To proceed:
Ahl al-Sunnah wa’l-Jama‘ah affirm the attribute of the eye for Allah Almighty, and they affirm that He has two eyes in a manner befitting His Majesty, without likening Him to His creation, drawing comparisons, asking how, or denying His attributes. However, introducing this belief into the expression mentioned above is an unnecessary affectation. It is better to avoid it and restrict oneself to clear and established expressions.
The attribute of the eye is among the revealed attributes established by the Qur’an and Sunnah. Allah Almighty says:
“And construct the ship under Our Eyes and Our revelation.”
[Hud 11:37]
And He says:
“And I bestowed upon you love from Me so that you would be brought up under My Eye.”
[Ta-Ha 20:39]
And He says:
“And be patient with the judgment of your Lord, for indeed, you are under Our Eyes.”
[At-Tur 52:48]
These texts affirm the attribute of the eye for Allah Almighty in a manner befitting Him, while believing in His statement:
“There is nothing like unto Him, and He is the All-Hearing, the All-Seeing.”
[Ash-Shura 42:11]
It is authentically reported in Sahih al-Bukhari from ‘Abdullah ibn ‘Umar, may Allah be pleased with them both, that the Prophet ﷺ mentioned the Dajjal and said:
“Indeed, Allah is not hidden from you. Indeed, Allah is not one-eyed,” and he gestured toward his eye, then mentioned that the False Messiah, the Dajjal, is blind in his right eye.
This hadith affirms for Allah Almighty what befits Him concerning the eye, while negating one-eyedness from Him, for one-eyedness is a deficiency, and Allah Almighty is exalted above every deficiency.
A number of scholars have transmitted the affirmation that Allah Almighty has two eyes, including Ibn Khuzaymah, al-Lalaka’i, and others. Shaykh Ibn ‘Uthaymin, may Allah have mercy on him, also stated that Ahl al-Sunnah affirm that Allah has two eyes, citing the hadith of the Dajjal: “He is one-eyed, while your Lord is not one-eyed.”
What is meant is that Ahl al-Sunnah do not affirm for Allah two eyes resembling the eyes of created beings. Rather, they affirm what Allah has affirmed for Himself and what His Messenger ﷺ affirmed for Him, while believing that no one knows the true nature of how this attribute is except Allah Almighty.
As for what you said to your friend: “If you advise me in front of six eyes, then you have advised me,” intending by the other two eyes the two eyes of the Most Merciful, this should not be said, and it is not the kind of expression a Muslim should force or contrive in this subject.
Your fundamental belief in affirming the attribute of the eye for Allah Almighty and affirming two eyes in a manner befitting Him is not the issue. Rather, the problem lies in the way this meaning is inserted into the expression and the context.
The discussion concerned the etiquette of giving advice. It would have been sufficient to say that advice given privately is sincere advice, whereas advice given publicly may become closer to exposing or reproaching someone. There is no need to move from this to counting “six eyes” and including the eyes of Allah Almighty in that number. This is an affected and unusual manner of expression that serves no necessary purpose.
Such wording may also cause confusion for the listener, requiring the speaker to give a lengthy explanation of what was intended and then explain the qualifications relating to the divine attributes, even though the context does not call for any of that.
What is prescribed is to affirm what Allah has affirmed for Himself and what His Messenger ﷺ has affirmed for Him, without distortion or denial, and without asking how or drawing comparisons.
At the same time, a Muslim should choose clear expressions commonly used by scholars and avoid strange formulations that may suggest unintended meanings or turn discussion of the divine attributes into an area of unnecessary affectation.
Among the effects of believing that Allah Almighty watches over His servants is that a Muslim should strive not to be seen by Allah where He has forbidden him to be, and to be found where He has commanded him to be. He should feel modesty before Allah and strive to obey Him, whether alone or among people.
The attribute of the eye is affirmed for Allah Almighty, and He has two eyes befitting His Majesty, without likening Him to His creation, drawing comparisons, asking how, or denying His attributes. As for the expression “six eyes” that you mentioned to your friend, we do not recommend it because it is an unnecessary and unusual affectation that does not serve the intended purpose of discussing the etiquette of giving advice.
It is preferable to restrict oneself to clear and established expressions, avoid affected formulations concerning the Names and Attributes of Allah, and maintain the belief of Ahl al-Sunnah in affirming what has been authentically established for Allah Almighty in a manner befitting Him.
And Allah knows best.