Sunan at-Tirmithiy كتاب تفسير القرآن باب ومن سورة والنجم
Ibn 'Abbās said, "Muḥammad, peace and blessings of God be upon him, saw his Lord." I said, "Does God not say, 'Vision perceives Him not, but He perceives [all] vision; and He is the Subtle, the Acquainted.' (6 [Al-An'ām]: 103)." He replied, "Woe to you! That is when He manifests Himself through His light, which is His light. And Muḥammad saw his Lord twice." Click on ḥadīth to read more