A man of effeminate manner was with her while the Messenger of Allah ﷺ was inside the house. He said to Umm Salama's brother, "Abdullah bin Abu Umaya, if Allah grants you victory over Taif tomorrow, I will show you the daughter of Ghaylan, for she comes forward with four folds and goes back with eight."The Messenger of Allah ﷺ heard him and said, "These people must not enter upon you."
أن مخنثا كان عندها ورسول الله ﷺ في البيت، فقال لأخي أم سلمة: يا عبد الله بن أبي أمية! إن فتح الله عليكم الطائف غدا، فإني أدلك على بنت غيلان، فإنها تقبل بأربع وتدبر بثمان. قال: فسمعه رسول الله ﷺ، فقال: لا يدخل هؤلاء عليكم.
Bukhari narrated it in "Al-Maghazi" (4324), and Muslim in "Al-Salam" (2180), both of them through Hisham bin Urwa, from his father, from Zaynab bint Umm Salama, from Umm Salama, and he mentioned it, the wording being Muslim's, while Bukhari's wording is similar.