Riyad as-Saliheen 1362
Ibn 'Umar (May Allah be pleased with them) reported:
I heard the Messenger of Allah ﷺ saying, "When a slave is sincere to his master and worships Allah well, He will have a double reward."
[Al-Bukhari and Muslim].
عن ابن عمر رضي الله عنهما أن رسول الله ﷺ قال:
"إن العبد إذا نصح لسيده، وأحسن عبادة الله، فله أجره مرتين" ((متفق عليه))
Classification
Sahih (Authentic)
References
Riyad as-Saliheen 1362
Riyad as-Saliheen Book of Jihad, Hadith 78