الكافي- ط الاسلامية, volume 3, page 74

16. Muhammad ibn Yahya has narrated from al-‘Amrakiy ibn Ali from Ali ibn Ja‘far from his brother abu al-Hassan (a.s.) has said the following: “I once asked abu al-Hassan (a.s.), about the case of one who had a nosebleed; then he blew his nose and parts of it became small segments which came in contact with his water container. Can he take Wudu’ with such water? He (the Imam) said, ’If nothing is visible in the water container it is not harmful. However, if things show in it he must not use it for Wudu’. I (the narrator) then asked him (the Imam) about a man who has nosebleed while taking Wudu’ and a drop falls in his water container. Can he take Wudu with such water? He (the Imam) said, ‘No, he cannot take Wudu’ with such water.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

17. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from al-Barqiy from Sa‘d ibn Sa‘d from Safwan who has said the following: “I once asked abu al-Hassan (a.s.), about a man who needs to take Wudu’ for Salah (prayer). However, he is not able to find water. He finds a certain amount of water which is enough for his Wudu’ but it costs one hundred dirham or one thousand dirham. He has that much dirham to buy and take Wudu’, should he buy the water or instead take Tayammum? He (the Imam) said, ‘No, he must buy. This kind of thing has happened to me and I bought water to take Wudu’. What is bought (in this case) is a great deal.’” (For such Ahadith about an act or issue of the five categories of deeds the qualities such as Wujub, (Obligatory), Hurmat (Prohibited), Istihbab (Preference), Kirahat (Detestability) or Ibahah (Permissibility) one must consult fatwas of one’s Mujtahid.)

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.