It is narrated from Sayyidah Aishah (may Allah be pleased with her) that she said: "I saw the Prophet (peace and blessings be upon him) embrace Sayyiduna Ali (may Allah be pleased with him) and kiss him, and he (peace and blessings be upon him) was saying: 'May my father be ransomed for this lone martyr! May my father be ransomed for this lone martyr!'"
Hadith Referenceمسند أبي يعلى الموصلي / مسند عائشة / 4576