Chapter on the Description of Ablution (Wudu)
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 4
وَ رُوِيَ عَنْهُ أَيْضاً أَنَّهُ قَالَ: إِنَّ فِي كِتَابِ اَللَّهِ اَلْمَسْحَ وَ يَأْبَى اَلنَّاسُ إِلاَّ اَلْغَسْلَ.
It was also narrated from him (Ibn Abbas) that he said: "Indeed, wiping is in the Book of Allah سبحانه وتعالى, but the people insist on washing."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 66
- Ṣaḥīḥ al-Tahdhīb