Silsilah as-Sahihah 445 — Rulings of using stones for Istinja

Sayyiduna Salamah bin Qais Ashja’i (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: “When you perform ablution, clean your nose, and when you use stones for istinja (purification), use an odd number (of stones).”