The Messenger of Allah ﷺ said, "Whoever loses three children from his own loins and bears it patiently for the sake of Allah will enter Paradise."A woman stood up and asked, "Or two?"He replied, "Or two."The woman then said, "How I wish I had said one!"
أخبرنا أحمد بن عمرو بن السرح قال حدثنا ابن وهب حدثني عمرو قال حدثني بكير بن عبد الله عن عمران بن نافع عن حفص بن عبيد الله
أن رسول الله ﷺ قال من احتسب ثلاثة من صلبه دخل الجنة فقامت امرأة فقالت أو اثنان قال أو اثنان قالت المرأة يا ليتني قلت واحدا
Sourcing, its isnad is sahih. Bukhari narrated it in Tarikh al-Kabir 6/421 from the hadith of Ibn Wahb by this route, and from his route Ibn Hibban graded it sahih, no. 721, and it is in the Kubra, no. 1999. Amr is Ibn Harith, or Imran, who is trustworthy, deemed trustworthy by Nasai and Ibn Hibban.