Masruq reported,

I asked Ayesha رضي الله عنها, "Then what about His saying, 'Then he drew near and came down, until he was at a distance of two bow-lengths or nearer'?"She replied, "That was Jibreel. He used to come to him in the form of a man, but on this occasion he came to him in his true form, and he filled the horizon."

Bukhari 3235

Sahih

حدثني محمد بن يوسف حدثنا أبو أسامة حدثنا زكرياء بن أبي زائدة عن ابن الأشوع عن الشعبي

عن مسروق قال

قلت لعائشة رضي الله عنها فأين قوله {ثم دنا فتدلى فكان قاب قوسين أو أدنى} قالت ذاك جبريل كان يأتيه في صورة الرجل وإنه أتاه هذه المرة في صورته التي هي صورته فسد الأفق

البخاري 3235صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Beginning of creation
Chapter
If one of you says Ameen and the angels in heaven say it, and one coincides with the other, his previous sins will be forgiven
Numbering
Darussalam 3235
Bukhari 3235