Hammad (may Allah have mercy on him) says: In our view, urine will be considered equivalent to blood as long as it does not reach the amount of a dirham.
Hadith Referenceالفتح الربانی / كتاب الطهارة / 440
Hadith Gradingمحدثین:صحیح
Hadith Takhrij«اثر صحيح الاسناد ، (انظر مسند أحمد ترقيم الرسالة: 19484 ترقیم بيت الأفكار الدولية: 19713»
Brief Explanation
Benefits: … This is also the position of Imam Abu Hanifah, but this opinion is weak, because the Shari‘ah has given a general command to avoid impurity.
The narration regarding one dirham and its reality: It is narrated from Sayyiduna Abu Hurairah (radi Allahu anhu) that the Messenger of Allah (sallallahu alayhi wa sallam) said: “The prayer is to be repeated due to an amount of blood equivalent to a dirham.” In another wording: “When the blood on the garment reaches the amount of a dirham, the garment is to be washed and the prayer repeated.” (Sunan al-Daraqutni)
Imam Bukhari said: This hadith is false. Imam Ibn Hibban said: This hadith is undoubtedly fabricated; the Messenger of Allah (sallallahu alayhi wa sallam) did not state this; the people of Kufa fabricated it. In its chain of narration is Rawh ibn Ghutayf, who used to narrate fabricated reports from trustworthy narrators. (See: Nasb al-Rayah: 1/212)