Mis'ar mentioned it just like the aforementioned narration, but with these additional words: that he heard Sayyidah Aishah (may Allah be pleased with her), the honoured wife of the Prophet (peace and blessings be upon him), saying.
(b) The Shaykh (may Allah have mercy on him) says that Ibn Abi Atiq is Abdullah bin Muhammad bin Abd al-Rahman bin Abi Bakr al-Siddiq (may Allah be pleased with him), and Abu Atiq is the kunyah of Muhammad.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 137