It was narrated that ‘Ali (رضي الله عنه) said:

I used to spend a little time with the Messenger of Allah (ﷺ) at night, during which Allah, may He be glorified and exalted, benefited me (as He willed). The Messenger of Allah (ﷺ) said: `The angels do not enter a house in which there is an image or a dog or a person who is junub.` He said: `I looked and found a puppy belonging to al Hasan bin ‘Ali beneath the bed, so I took it out.`

حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ جَابِرٍ، قَالَ سَمِعْتُ عَبْدَ اللَّهِ بْنَ نُجَيٍّ، يُحَدِّثُ عَنْ عَلِيٍّ، رَضِيَ اللَّهُ عَنْهُ قَالَ كَانَتْ لِي سَاعَةٌ مِنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مِنْ اللَّيْلِ يَنْفَعُنِي اللَّهُ عَزَّ وَجَلَّ بِمَا شَاءَ أَنْ يَنْفَعَنِي بِهَا قَالَ فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لَا تَدْخُلُ الْمَلَائِكَةُ بَيْتًا فِيهِ صُورَةٌ وَلَا كَلْبٌ وَلَا جُنُبٌ قَالَ فَنَظَرْتُ فَإِذَا جِرْوٌ لِلْحَسَنِ بْنِ عَلِيٍّ تَحْتَ السَّرِيرِ فَأَخْرَجْتُهُ‏.‏