﴿ وَيَٰقَوْمِ هَٰذِهِۦ نَاقَةُ ٱللَّهِ لَكُمْ ءَايَةًۭ فَذَرُوهَا تَأْكُلْ فِىٓ أَرْضِ ٱللَّهِ وَلَا تَمَسُّوهَا بِسُوٓءٍۢ فَيَأْخُذَكُمْ عَذَابٌۭ قَرِيبٌۭ ﴾

“And [then he said]: "O my people! This she-camel belonging to God shall be a token for you: so leave her alone to pasture on God's earth, and do her no harm, lest speedy chastisement befall you!"”

Please check ayah 11:68 for complete tafsir.