Abd al-Rahman bin Abi Bakrah (may Allah have mercy on him) saw some people praying the forenoon (Duha) prayer and said: "My father, Sayyiduna Abu Bakrah (may Allah be pleased with him), told me that the Prophet (peace and blessings be upon him) and most of his (peace and blessings be upon him) Companions (may Allah be pleased with them) departed from this world and they did not pray this prayer."
Imam al-Tabarani (may Allah have mercy on him) said: "In my view this Abu Amr, who narrated this hadith, is Abu Amr bin al-Ala'; only Adi bin al-Fadl narrated this hadith from him, and Ward bin Abdullah is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 5374
Hadith Takhrij«أخرجه النسائي فى «السنن الكبرى» برقم: 480، والدارمي فى «مسنده» برقم: 1497، وأحمد فى «مسنده» برقم: 20790، والبزار فى «مسنده» برقم: 3635»