Hadith 2431
Sayyiduna Mu’adh bin Jabal (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings of Allah be upon him) said: “Whoever strives in the path of Allah for the duration it takes to milk a she-camel twice, Paradise becomes obligatory for him. And this is such a short time that the milker milks and the she-camel lets down her milk.”