'Abdullah bin As-Sa'ib (May Allah be pleased with him) reported:
The Messenger of Allah (ﷺ) used to perform four Rak'ah prayer after the declining of the sun before Zuhr prayer and would say, "This is an hour at which the gates of heaven are opened, and I like that my good deeds should rise to heaven at that time."[At- Tirmidhi].
App reference: Book 9, Hadith 127
Arabic/English book reference: Book 9, Hadith 1117