It is narrated from Sayyiduna Salamah bin al-Akwa' (may Allah be pleased with him) that the Prophet of Allah (peace and blessings be upon him) said: "How excellent are thirty camels: one goes out of them in their zakah, one of them is given as a mount in the path of Allah, and one is lent out; and they are better than forty, fifty, sixty, seventy, eighty, ninety and a hundred. And woe to the owner of a hundred because of the hundred."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6249