(a) Sayyidah Maymunah (may Allah be pleased with her) informed Sayyiduna Ibn Abbas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) and I bathed from a single vessel.
(b) Imam Bukhari (may Allah have mercy on him) said that Ibn Uyaynah (may Allah have mercy on him), in the later part of his life, used to say: 'from Ibn Abbas, from Maymunah', and the correct version is what Abu Nu'aym narrated.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 898