I heard Ibn Abi Awfa say when I asked him about (eating) locusts: I went on six or seven expeditions along with the Messenger of Allah ﷺ and we ate them (locusts) along with him.  

غَزَوْتُ مَعَ رَسُولِ اللَّهِ ﷺ سِتَّ أَوْ سَبْعَ غَزَوَاتٍ فَكُنَّا نَأْكُلُهُ مَعَهُ  

The Messenger of Allah ﷺ was asked about (eating) locusts. He replied: They are the most numerous of Allah's hosts. I neither eat them nor declare them unlawful.  

سُئِلَ النَّبِيُّ ﷺ عَنِ الْجَرَادِ فَقَالَ أَكْثَرُ جُنُودِ اللَّهِ لاَ آكُلُهُ وَلاَ أُحَرِّمُهُ  

Salman said: The Messenger of Allah ﷺ was asked about locusts. He replied in a similar way(as mentioned above) saying: The most numerous of Allah’s host. The narrator ‘Ali said: His name is Fa’id, that is the name of al-Awwam. Abu Dawud said: This tradition has been transmitted by Hammad b. Salamah, from Abu al-Awwam from Abu uthman, from the Prophet ﷺ. He did not mention salman (i.e., the companions).  

أَنَّ رَسُولَ اللَّهِ ﷺ سُئِلَ فَقَالَ مِثْلَهُ فَقَالَ أَكْثَرُ جُنْدِ اللَّهِ قَالَ عَلِيٌّ اسْمُهُ فَائِدٌ يَعْنِي أَبَا الْعَوَّامِ