It was narrated from Ibn 'Umar that Hafsah told him: "When he was called to Subh prayer, the Messenger of Allah (ﷺ) would do two prostrations before Subh prayer"
SahihSahihHasanBook 20 · Hadith 174
سنن النسائي
It was narrated from Ibn 'Umar that Hafsah told him: "When he was called to Subh prayer, the Messenger of Allah (ﷺ) would do two prostrations before Subh prayer"