Riyad as-Saliheen 1144
Abu Qatadah (May Allah be pleased with him)reported:
The Messenger of Allah ﷺ said, "When anyone of you enters the mosque, he should perform two Rak'ah (of voluntary prayer) before sitting."
[Al-Bukhari and Muslim].
وعن أبي قتادة رضي الله عنه قال: قال رسول الله ﷺ:
" إذا دخل أحدكم المسجد فلا يجلس حتى يصلي ركعتين". ((متفق عليه)).
Classification
Sahih (Authentic)
References
Riyad as-Saliheen 1144
Riyad as-Saliheen Book of Virtues, Hadith 154