It was narrated that Umm 'Atiyyah said:
"We did not think anything of the yellowish or brownish discharge." (Sahih)(Another chain) It was narrated that Umm 'Atiyyah said: "We did not think that the yellowish or brownish discharge counted for anything."Muhammad bin Yahya said: "Wuhaib (who narrated the second version) is the better of them with this according to us." (ES)
English reference (ES): Vol. 1, Book 1, Hadith 647 (ES)
Arabic reference (ES): Book 1, Hadith 690 (ES)