Narrated 'Ata:

People said: safar is a pain within the belly. I asked: What is hamah ? He said: People said (believed) that hamah which is an owl or a nightbird and which shrieks is the spirit of men. It is not the spirit of men. It is an animal.

حَدَّثَنَا يَحْيَى بْنُ خَلَفٍ، حَدَّثَنَا أَبُو عَاصِمٍ، حَدَّثَنَا ابْنُ جُرَيْجٍ، عَنْ عَطَاءٍ، قَالَ يَقُولُ النَّاسُ الصَّفَرُ وَجَعٌ يَأْخُذُ فِي الْبَطْنِ ‏.‏ قُلْتُ فَمَا الْهَامَةُ قَالَ يَقُولُ النَّاسُ الْهَامَةُ الَّتِي تَصْرُخُ هَامَةُ النَّاسِ وَلَيْسَتْ بِهَامَةِ الإِنْسَانِ إِنَّمَا هِيَ دَابَّةٌ ‏.‏