﴿ مَا كَذَبَ ٱلْفُؤَادُ مَا رَأَىٰٓ ﴾

“The [servant’s] heart did not give the lie to what he saw:”

(The heart) of Muhammad (pbuh) (lied not (in seeing) what it saw) when he saw his Lord with his heart; it is also said that he saw his Lord with his eyes. This is why Allah made His oath.