It is narrated from Sayyiduna Abu Musa (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Intercession is for the one who said 'La ilaha illallah' (there is no god but Allah)."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Ata' bin Abi Maymunah except Hafs al-Minqari, and no one narrated it from Hafs except Rawh bin Ata'; Wahb bin Yahya is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 5343
Hadith Takhrij«أخرجه الطبراني فى «الأوسط» برقم: 5370»