54:29

فَنَادَوْا صَاحِبَهُمْ فَتَعَاطَىٰ فَعَقَرَ

Transliteration:

Fanadaw sahibahum fataAAata faAAaqara

Word by Word:

But they called their companion and he took and hamstrung.

Translations:

But they summoned their [boldest] companion, and he ventured [upon the evil deed], and cruelly slaughtered [the animal]:

But they called to their companion, and he took a sword in hand, and hamstrung (her).

But they call their comrade and he took and hamstrung (her).

Surely We are going to send the she-camel as a trial for them; so watch them and have patience.

But they called their companion, and he dared and hamstrung [her].