大比丘三千威儀 2.69

2.69

掃塔地有五事：一者不得背佛；二者大得不掉手污人足；三者不得掃去墡土；四者當自手除出棄之；五者不得當人道，亦莫棄水中及圊中。

Sweeping the ground of the stūpa has five matters: 1. One must not turn one's back to the Buddha. 2. One must not swing one's arms excessively to soil people's feet. 3. One must not sweep away the white clay. 4. One should remove [refuse] with one's own hands and discard it. 5. One must not block people's path, nor discard it into water or the latrine.