From him, from Muhammad ibn Al-Husayn, from Wuhaib, from Abu Basir, who said:
I asked Abu Abdullah عليه السلام about ink that touches a garment but is not washed off. Imam عليه السلام said: "There is no harm."
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 448