Mukhtasar Bukhari (Abridged) 1285 — Saying SubhanAllah when descending

Narrated Jabir bin Abdullah (may Allah be pleased with him): When we ascended to higher ground, we would say "Allahu Akbar" (Allah is the Greatest), and when we descended to lower ground, we would say "Subhan Allah" (Glory be to Allah). (When descending stairs, say Subhan Allah.)