It is narrated from Sayyidah Umm Salamah (may Allah be pleased with her) that she said about Ibn Sayyad: "Ibn Sayyad's mother gave birth to him in such a state that his umbilical cord had been cut from birth, he was blind in one eye, and he had been (naturally) circumcised."
Imam Ahmad bin Mani' narrated this hadith in his Musnad, and all its narrators are thiqat (trustworthy) and reliable.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الفتوح / 4514
Hadith Gradingمحدثین:إسناده ضعيف
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده ضعيف » «أخرجه مصنف ابن أبي شيبة برقم: 38683»