Musnad Abu Ya'la al-Mawsili 159:20

Abu Khaythama narrated to us, Sufyan narrated to us, from Abu al-Zinad, from al-A'raj, from Abu Hurayrah, attributing it [to the Prophet]: "Is there not a man who would grant a household a she-camel, [so that] it goes out in the morning with a large bowl and returns in the evening with a large bowl? For its reward is indeed great." Abu Khaythama said: "If he had said 'with bowls' (bi-'isas), it would have been better."