Sunan At-Tirmidhi

Narrated 'Abdullah bin Shaqiq:""I said to Abu Dharr: 'If I saw the Prophet (ﷺ) then I would asked him."" He said: 'What is it that you would have asked him about?' I said: 'I would have asked him if Muhammad saw his Lord?' He said: 'I did ask him that, and he (ﷺ) said: I saw light