Anas bin Sirin (may Allah have mercy on him) said: I set out with Sayyiduna Anas (bin Malik) (may Allah be pleased with him) towards the land of Baythaq Sirin. When we reached the Tigris, the time of Zuhr came, so he led us in prayer sitting on a mat in the boat, while the boat kept pulling us along.
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 677