SHAFAQNA – Imam Ali (AS) narrated from the Prophet of Islam (PBUH) who said: No deed is more superior with God than to make a believer happy or to remove his/her hunger, or to relieve pressure on him/her, or to pay his/her debt, or provide clothes for him/her [1]. The point of this narration is that collective prayers in weight and amount are preferred to individual prayers.
[1] Navader-e-Ravandi, Page 109.