2-46 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Sa’ed ibn Abdullah quoted Yaqoob ibn Yazid, on the authority of Marvak ibn Ubayd who linked it up through other narrators to Aba Abdullah as-Sadiq (MGB), “There are two prayers for high quality goods, and there are two curses for bad goods. People pray for high quality goods and say, ‘May God bless you and the man who sold you to me.’ People curse bad goods and say, ‘May God not bless you and the man who sold you to me.’”