Al-Kāfi

Hadith 18
water-puritywudu
5ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ الْحُسَيْنِ بْنِ سَعِيدٍ عَنِ الْقَاسِمِ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ أَبِي حَمْزَةَ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيْهِ الْسَّلام) عَنِ الْمَاءِ السَّاكِنِ وَالاسْتِنْجَاءِ مِنْهُ وَالْجِيفَةُ فِيهِ فَقَالَ تَوَضَّأْ مِنَ الْجَانِبِ الآخَرِ وَلاَ تَوَضَّأْ مِنْ جَانِبِ الْجِيفَةِ.
5. A number of our people have narrated from Ahmad ibn Muhammad from al-Husayn ibn Sa‘id from al-Qasim ibn Muhammad from Ali ibn abu Hamzah who has said the following: “I asked abu ‘Abd Allah (a.s.), about a (pond of) water which is not running and has a dead animal in it. ‘How can one cleanse oneself with such water?’ He (the Imam) said, ‘You can take Wudu’ from the other side and not from the side of the dead animal.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī