Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said, “The hand of Allah is full and it is not diminished by continuous spending night and day. Do you not see that He has been spending since the creation of the heavens and the earth, and it has not decreased anything in His hand?”
Source: Ṣaḥīḥ al-Bukhārī 7411, Ṣaḥīḥ Muslim 993
Grade: Muttafaqun Alayhi (authenticity agreed upon) according to Al-Bukhari and Muslim
عَنْ أَبِي هُرَيْرَةَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ يَدُ اللَّهِ مَلْأَى لَا يَغِيضُهَا نَفَقَةٌ سَحَّاءُ اللَّيْلَ وَالنَّهَارَ أَرَأَيْتُمْ مَا أَنْفَقَ مُنْذُ خَلَقَ السَّمَوَاتِ وَالْأَرْضَ فَإِنَّهُ لَمْ يَغِضْ مَا فِي يَدِهِ
7411 صحيح البخاري كتاب التوحيد باب قول الله تعالى لما خلقت بيدي
993 صحيح مسلم كتاب الزكاة باب الحث على النفقة وتبشير المنفق بالخلف