Sayyiduna Ibn Mas'ud (may Allah be pleased with him) said, regarding the saying of Allah Almighty: "He certainly saw of the greatest signs of his Lord" [Surah al-Najm: 18]: "That is, he saw Jibril (peace be upon him) in a garment of rafraf which had filled all that is between the heaven and the earth."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 9018