Al-Kāfi
Hadith 1791ابن أبي عمير، عن هشام بن الحكم، عن أبي عبدالله عليه السلام في حصى الجمار قال: كره الصم منها وقال: خذ البرش.
6. Muhammad ibn Yahya has narrated from Hisham ibn al-Hakam who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘Pebbles of solid structure are disliked.’ He (the Imam) said, ‘Take such pebbles that are not solid and are of several colors.’”