Leviticus 14:7; Leviticus 14:16; Leviticus 14:27; Leviticus 14:51

7 Seven times he shall sprinkle the one to be cleansed of the defiling disease, and then pronounce them clean. After that, he is to release the live bird in the open fields.
16 dip his right forefinger into the oil in his palm, and with his finger sprinkle some of it before the LORD seven times.
27 and with his right forefinger sprinkle some of the oil from his palm seven times before the LORD.
51 Then he is to take the cedar wood, the hyssop, the scarlet yarn and the live bird, dip them into the blood of the dead bird and the fresh water, and sprinkle the house seven times.