Sahih al-Bukhari 583
صحيح البخاري#583SahihNarrated Hisham's father:Ibn `Umar said, "Allah's Messenger (ﷺ) said, 'Do not pray at the time of sunrise and at the time of sunset.' " Ibn `Umar said, "Allah's Messenger (ﷺ) said, 'If the edge of the sun appears (above the horizon) delay the prayer till it becomes high, and if the edge of the sun disappears, delay the prayer till it sets (disappears completely)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 9:58