Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said, concerning the saying of Allah Almighty: "Indeed, Ibrahim was tender-hearted (awwah) and forbearing" [Surah al-Tawbah: 114]: "Awwah means one who is most compassionate."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8971