يصلون لكم فإن أصابوا فلكم وإن أخطئوا فلكم وعليهم

رياض الصالحين بالعربية والإنجليزية - (ج 1 / ص 2406)
1838 - وعنه رضي الله عنه أن رسول الله صلى الله عليه و سلم قال : [ يصلون لكم فإن أصابوا فلكم وإن أخطئوا فلكم وعليهم ] رواه البخاري

 Abu Hurairah (May Allah be pleased with him) reported: The Messenger of Allah (PBUH) said, "Your leaders will lead you in Salat (prayer). If they conduct it properly, you and they will be rewarded; but if they make mistakes you will earn the reward and they will be held responsible (for the mistakes).''

[Al-Bukhari].

Commentary:

In this narration, there is a mention of one of the signs of the nearness of the Day of Judgement: Muslims will be led in their prayers as well as worldly affairs by ignorant, undeserving rulers. Whoever offers prayers with them and behind them according to the Sunnah, then both of them will get the reward. Otherwise the reward will be established with the followers and the burden of the mistakes will be placed on the rulers' shoulders.