And His Almighty's saying in Surat Al-An'am: {So eat of that upon which the name of God has been mentioned, if you are believers in His verses... up to His saying: And do not eat of that upon which the name of God has not been mentioned, for indeed, it is grave disobedience.} (Al-An'am: 118-121).

And His Almighty's saying: {And eat and drink, but be not excessive.} (Al-A'raf: 31).

And know that this praised food and drink, which are exclusively for the people of Paradise, are forbidden to the denying people of the exoteric who are the people of the Fire, just as He Almighty informed us about them and about that food in Surat Al-A'raf by His saying: {And the companions of the Fire will call to the companions of Paradise, "Pour upon us some water or from whatever God has provided you." They will say, "Indeed, God has forbidden them both to the disbelievers."} (Al-A'raf: 50).

And among what confirms the prohibition of speaking aloud (al-Jahr) the esoteric knowledge to the disbelievers and the prohibition of concealing it from the believers is His Almighty's saying: {And do not recite [too] loudly in your prayer or [too] quietly.} (Al-Isra': 110).

And the explanation of this noble verse has come in the exegesis (Tafsir) of (Al-Jalalayn): meaning, do not recite loudly in your prayer among the disbelievers, and do not hide it from the believers.