How authentic is the saying attributed to Imam al-Sadiq (AS) concerning how to show gratitude for a blessing by placing one's cheek on the dust, or what takes its place?

The aforementioned narration attributed to Ja'far al-Sadiq (may Allah have mercy on him) has not been found in the available books of السنة (Sunnah). It is advised not to consult the books or websites of the people of Bid'ah (innovation).