Sayyiduna Abdullah bin Amr (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "There are four things which, when they are in you, there is no harm upon you, whatever of this world you miss out on: guarding a trust, speaking the truth, good character, and caution in food (that is, eating only what is lawful)."
Ahmad and al-Tabarani recorded it, and the chains of both are hasan (good).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزهد / 18123
Hadith Gradingمحدثین:إسنادہ حسن
Hadith Takhrij«اخرجه احمد فى المسند (6652) ، أخرجه مسند أحمد برقم: 6614»