Sunan Ibn Majah Book 37, Hadith 4156

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا وَكِيعٌ، عَنْ أَبِي نَعَامَةَ، سَمِعَهُ مِنْ، خَالِدِ بْنِ عُمَيْرٍ قَالَ خَطَبَنَا عُتْبَةُ بْنُ غَزْوَانَ عَلَى الْمِنْبَرِ فَقَالَ لَقَدْ رَأَيْتُنِي سَابِعَ سَبْعَةٍ مَعَ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ مَا لَنَا طَعَامٌ نَأْكُلُهُ إِلاَّ وَرَقُ الشَّجَرِ حَتَّى قَرِحَتْ أَشْدَاقُنَا ‏.‏

It was narrated that Ibn ‘Umar said:“Utbah bin Ghazwan delivered a sermon on the pulpit and said: ‘I saw myself the seventh of seven with the Messenger of Allah (ﷺ), and we did not have any food to eat except the leaves of trees, until our gums hurt.’”