Musannaf Ibn Abi Shaybah 31308 — Supplication at night: what is it?

Masruq said: We were with Sayyiduna Abu Musa (may Allah be pleased with him) when the night became very dark, so we took shelter in a ruined orchard. Masruq said: Sayyiduna Abu Musa (may Allah be pleased with him) stood up and began the Tahajjud prayer at night and recited very beautifully. Then he supplicated thus: "O Allah, You are the Giver of safety and faith, and You love the one who gives safety. You are the Guardian, and You love guardianship. You are Peace, and You love peace. You are the Truthful, and You love the one who speaks the truth."