Hadithcore
Mishkat al-Masabih, 3803

Anas reported God’s Messenger as saying, “No one who enters paradise will want to return to the world and have anything in the earth except the martyr. He will wish to return to the world and be killed ten times because of the honour he sees.” (Bukhari and Muslim.)

وَعَنْ أَنَسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَا مِنْ أَحَدٍ يَدْخُلُ الْجَنَّةَ يُحِبُّ أَنْ يُرْجَعَ إِلَى الدُّنْيَا وَلَهُ مَا فِي الْأَرْضِ مِنْ شَيْءٍ إِلَّا الشَّهِيدُ يَتَمَنَّى أَنْ يُرْجَعَ إِلَى الدُّنْيَا فَيُقْتَلَ عَشْرَ مَرَّاتٍ لِمَا يَرَى مِنَ الْكَرَامَةِ»

References1 variant
In-Book Reference
Book 19, Hadith 17