It is narrated from Hazrat Abu Musa (may Allah be pleased with him) that once we were on a journey of jihad with the Noble Prophet (peace and blessings be upon him). Whenever we ascended a hill or a high place or descended into a valley, we would say Takbeer in a loud voice. The Noble Prophet (peace and blessings be upon him) came close to us and said, "People! Be gentle with yourselves. You are not calling upon a deaf or absent Allah. You are calling upon the All-Hearing, the All-Seeing, who is closer to you than the neck of your mount. O Abdullah bin Qais, shall I not tell you about one of the treasures of Paradise?" I said, "Why not?" He said, "'La hawla wa la quwwata illa billah' (is one of the treasures of Paradise)."
Hadith Referenceمسند احمد / تتمہ مُسْنَدِ الْكُوفِيِّينَ / 19745