Riyad as-Salihin

Abu Dharr (May Allah be pleased with him) reported: Messenger of Allah (ﷺ) commanded me thus, "O Abu Dharr! Whenever you prepare a broth, put plenty of water in it, and and give some of it to your neighbours".

[Muslim].

In another narration of Muslim, narrated Abu Dharr (May Allah be pleased with him): My friend, (Messenger of Allah (ﷺ)) advised me saying, "Whenever you prepare a broth, put plenty of water in it, and give some to your neighbours and then give them out of this with courtesy."