The Ants
حَتَّىٰٓ إِذَآ أَتَوْا۟ عَلَىٰ وَادِ ٱلنَّمْلِ قَالَتْ نَمْلَةٌ يَـٰٓأَيُّهَا ٱلنَّمْلُ ٱدْخُلُوا۟ مَسَـٰكِنَكُمْ لَا يَحْطِمَنَّكُمْ سُلَيْمَـٰنُ وَجُنُودُهُۥ وَهُمْ لَا يَشْعُرُونَ
Until, when they came upon the valley of the ants, an ant said, "O ants, enter your dwellings that you not be crushed by Solomon and his soldiers while they perceive not."
Nearby ayahs help place verse 27:18 in sequence and meaning.
وَوَرِثَ سُلَيْمَـٰنُ دَاوُۥدَ ۖ وَقَالَ يَـٰٓأَيُّهَا ٱلنَّاسُ عُلِّمْنَا مَنطِقَ ٱلطَّيْرِ وَأُوتِينَا مِن كُلِّ شَىْءٍ ۖ إِنَّ هَـٰذَا لَهُوَ ٱلْفَضْلُ ٱلْمُبِينُ
And Solomon inherited David. He said, "O people, we have been taught the language of birds, and we have been given from all things. Indeed, this is evident bounty."
وَحُشِرَ لِسُلَيْمَـٰنَ جُنُودُهُۥ مِنَ ٱلْجِنِّ وَٱلْإِنسِ وَٱلطَّيْرِ فَهُمْ يُوزَعُونَ
And gathered for Solomon were his soldiers of the jinn and men and birds, and they were [marching] in rows.
فَتَبَسَّمَ ضَاحِكًا مِّن قَوْلِهَا وَقَالَ رَبِّ أَوْزِعْنِىٓ أَنْ أَشْكُرَ نِعْمَتَكَ ٱلَّتِىٓ أَنْعَمْتَ عَلَىَّ وَعَلَىٰ وَٰلِدَىَّ وَأَنْ أَعْمَلَ صَـٰلِحًا تَرْضَىٰهُ وَأَدْخِلْنِى بِرَحْمَتِكَ فِى عِبَادِكَ ٱلصَّـٰلِحِينَ
So [Solomon] smiled, amused at her speech, and said, "My Lord, enable me to be grateful for Your favor which You have bestowed upon me and upon my parents and to do righteousness of which You approve. And admit me by Your mercy into [the ranks of] Your righteous servants."
وَتَفَقَّدَ ٱلطَّيْرَ فَقَالَ مَا لِىَ لَآ أَرَى ٱلْهُدْهُدَ أَمْ كَانَ مِنَ ٱلْغَآئِبِينَ
And he took attendance of the birds and said, "Why do I not see the hoopoe - or is he among the absent?