Hadithcore
Musnad Ahmad 4289
graded· 3233

It was narrated from al-A'mash

Concerning the verse, "Indeed he (Muhammad (ﷺ) did see of the greatest signs, of his Lord (Allah).” (an-Najm 53:18), that he said: Ibn Mas'ood said: The Prophet (ﷺ) saw (Jibreel (as) wearing a garment of) green brocade from Paradise, filling the horizon.

References1 variant
Arabic/English book
Book 26, Hadith 4289