Arabic (Original)
وَبِهَذَا الْإِسْنَادِ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ أَكْثِرُوا ذِكْرَ اللَّهِ حَتَّى يَقُولُوا مَجْنُونٌ.
English Translation
And with this same chain: that the Messenger of Allah, peace and blessings be upon him, said: "Remember Allah abundantly, until they say, 'He is mad.'"