Nahj al-Balagha Hadith n. 337

Selections from The Sayings and Preaching of Amir al-Muminin Ali ibn Abi Talib (Peace Be Upon Him) Including His Replies to Questions and Maxims Expressed for Various Purposes.
Translated by Sayyid Ali Reza

وَقَالَ (عليه ‏السلام):

Amir al-mu'minin, peace be upon him, said:

الدَّاعِي بِلاَ عَمَلٍ

He who prays but does not exert effort

كَالرَّامِي بِلاَ وَتَرٍ.

is like the one who shoots without a bow-string.