Al-Kāfi - Volume 3 > Performing Salah (Prayer) for a Dead Person without Wudu’
Hadith #5

5ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ الْحُسَيْنِ بْنِ سَعِيدٍ عَنْ أَخِيهِ الْحَسَنِ عَنْ زُرْعَةَ عَنْ سَمَاعَةَ قَالَ سَأَلْتُهُ عَنْ رَجُلٍ مَرَّتْ بِهِ جَنَازَةٌ وَهُوَ عَلَى غَيْرِ وُضُوءٍ كَيْفَ يَصْنَعُ قَالَ يَضْرِبُ بِيَدَيْهِ عَلَى حَائِطِ اللَّبِنِ فَيَتَيَمَّمُ بِهِ.

5. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from al-Husayn ibn Sa‘id from his brother al-FIassan from Zur’ah from Sama‘ah who has said the following: “I once asked him (the Imam), ‘Alayhi al-Salam, about a man who comes across a deceased without Wudu’ and about what he should do. He (the Imam) said, ‘He can thump his palms against the wall of bricks to have Tayammum.’”