Shama-il Tirmidhi Chapter 53, Hadith Number 14 (381).
Ibn ‘Abbaas Radiyallahu ‘Anhu said: “Rasulullah Sallallahu ‘Alayhi Wasallam said: ‘The person that loses two infants, then Allah in return will surely grant that person entrance into Jannah!’. ‘Aayeshah Radiyallahu ‘Anha asked: ‘The one who has lost only one infant from among your ummah?’ He replied: ‘The one that loses only one infant shall also be forgiven’. ‘Aayeshah Radiyallahu ‘Anha then inquired: ‘What of those who have not lost any children from among your ummah?’ He replied: ‘I shall be an asset for him in the hereafter, because the loss due to my death shall be felt more than one’s family and children'”.
Verily the loss of Sayyidina Rasulullah Sallallahu ‘Alayhi Wasallam is such, that it is more sorrowful than the loss of one’s parents, relatives, friends, wife, children. In fact the loss of Sayyidina Rasulullah Sallallahu ‘Alayhi Wasallam is more than the loss of anyone else, which cannot be compared with anything else. It is stated in a hadith that when a person experiences difficulties, let him gain solace by thinking of it as a minor thing compared to my loss. He should think that patience was observed at the loss of Sayyidina Rasulullah Sallallahu ‘Alayhi Wasallam, so this difficulty has no comparison with it.