Abu Umama reported,

The Messenger of Allah ﷺ used to pray nine rakahs for his witr, but when he grew heavy and put on weight he prayed seven, and he also prayed two rakahs while seated, reciting in them "When the earth is shaken" [Zalzalah 99:1] and "Say, you disbelievers" [Kafirun 109:1].

Azami 2810

Hasan

عن أبي أمامة

كان رسول الله ﷺ يوتر بتسع حتى إذا بدن وكثر لحمه أوتر بسبع، وصلى ركعتين وهو جالس، يقرأ فيهما: {إذا زلزلت} و {قل يأيها الكفرون}.

الأعظمي 2810حسن
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Prayer
Chapter
Witr prayer
Section
Two rakahs after Witr
Numbering
Jami al-Kamil 2810 (2nd edition)
Azami 2810