Sunan An Nasai 5040

أَخْبَرَنَا قُتَيْبَةُ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ حَدَّثَنَا يَعْقُوبُ، ‏‏‏‏‏‏عَنْ مُوسَى بْنِ عُقْبَةَ، ‏‏‏‏‏‏عَنْ نَافِعٍ، ‏‏‏‏‏‏عَنْ ابْنِ عُمَرَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ، ‏‏‏‏‏‏قَالَ:‏‏‏‏ مَثَلُ الْمُنَافِقِ كَمَثَلِ الشَّاةِ الْعَائِرَةِ بَيْنَ الْغَنَمَيْنِ تَعِيرُ فِي هَذِهِ مَرَّةً وَفِي هَذِهِ مَرَّةً لَا تَدْرِي أَيَّهَا تَتْبَعُ .

It was narrated from Ibn 'Umar that : The Messenger of Allah [SAW] said: The parable of the hypocrite is that of a sheep that hesitates between two flocks, sometimes following one, and sometimes following another, not knowing which to follow.