Sunan an-Nasa'i 1767
سنن النسائي#1767Sahihأَخْبَرَنَا إِسْحَاقُ بْنُ مَنْصُورٍ، قَالَ أَنْبَأَنَا يَحْيَى، قَالَ حَدَّثَنَا الأَوْزَاعِيُّ، قَالَ حَدَّثَنِي يَحْيَى، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، عَنْ حَفْصَةَ، قَالَتْ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَرْكَعُ بَيْنَ النِّدَاءِ وَالصَّلاَةِ رَكْعَتَيْنِ خَفِيفَتَيْنِ .
It was narrated from Ibn 'Umar that Hafsah said:"The Messenger of Allah (ﷺ) used to pray two brief rak'ahs between the call (the Adhan) and the prayer
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiHasan
In-book reference: 20:170