Riyad as-Saliheen 1465
An-Nu'man bin Bashir (May Allah be pleased with them) reported:
The Prophet ﷺ said, "Du'a (supplication) is worship."
[Abu Dawud].
وعن النعمان بن بشير رضي الله عنهما عن النبي ﷺ قال:
"الدعاء هو العبادة".
Classification
Sahih (Authentic)
References
Riyad as-Saliheen 1465
Riyad as-Saliheen Book of Du'a (Supplications), Hadith 1