Surah Al-'Ankabut 29:50

وَقَالُوا۟ لَوْلَآ أُنزِلَ عَلَيْهِ ءَايَـٰتٌ مِّن رَّبِّهِۦ ۖ قُلْ إِنَّمَا ٱلْـَٔايَـٰتُ عِندَ ٱللَّهِ وَإِنَّمَآ أَنَا۠ نَذِيرٌ مُّبِينٌ

But they say, "Why are not signs sent down to him from his Lord?" Say, "The signs are only with Allāh, and I am only a clear warner."

Translation: Saheeh International

Tafsir

And they namely the disbelievers of Mecca say ‘Why has not some sign been sent down to him to Muhammad (s) from his Lord?’ āyatun ‘sign’ a variant reading has āyātun ‘signs’ such as the she-camel of Sālih or the staff of Moses or the Table of Jesus. …

Excerpt from Tafsir al-Jalalayn, commentary on 29:50, via Quran.com. The reader has the full commentary and 9 more tafsirs.