Hadith 11, 40 Hadith Qudsi
On the authority of Abu Harayrah (may Allah be pleased with him) from the Prophet (ﷺ), who said:
Allah (mighty and sublime be He) said:
Spend (on charity), O son of Adam, and I shall spend on you.

It was related by al-Bukhari (also by Muslim).
عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ، أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: 

" قَالَ اللَّهُ: أَنْفِقْ يَا ابْنَ آدَمَ، أُنْفِقْ عَلَيْكَ ".