On The Leaves Of The Trees In China

Muhammd bin Sanan narrates “One day I was sat with Imam Sadiq (as) and a person came. Imam (as) replied, “Who is at the door”? I said, “A man from China”. Imam (as) said, “Bring him inside”. Imam (as) asked him, “Do you know Us in China”? He replied, “Yes”. Then Imam (as) asked, “How do you know Us”? He replied, “O’ Son of RasoolAllah (saw)! There is a tree in China and every year a flower grows from it. It changes its color twice in the day.
In the morning we see written on it “La illaha illallah Muhammadin rasoolullah”, and in the evening “La illaha illallah Ali calipha RasoolAllah (saw)”. ^{1 2}

References:

1. Madina tul Moajiz Second Edition pg 460[↩]
2. Names and Titles of Ameerul Momineen (asws): [Kitab Fi Asma wa Alqaab Ameerul Momineen Ali (asws) ibn Abi Talib (as)], Abdul Rasool[↩]

[Quran Chapter 30:5-6] 5. In Allah's support. He supports whomever He wills. He is the Almighty, the Merciful. 6. The promise of Allah—Allah never breaks His promise, but most people do not know.