7-70 Muhammad ibn al-Hassan ibn Ahmad ibn al-Walid - may God be pleased with him - narrated that Sa’ed ibn Abdullah quoted Al-Qasim ibn Muhammad al-Isfahani, on the authority of Suleiman ibn Davood al-Munqeri, on the authority of Hafs ibn Qiyath al-Nakha’ee, on the authority of Aba Abdullah as-Sadiq (MGB),

“Whoever wants to travel, it is better for him to go on a trip on Saturdays because if a stone becomes separated from the mountain, God will return it to its place on that day. It is better for those who have some need, to ask for it on a Tuesday since that is the day on which God softened iron for David (MGB).”