Sayyiduna ‘Awf ibn Malik (radiyallahu ‘anhu) reports that Nabi (sallallahu ‘alayhi wa sallam) said:
“I and a woman whose face has darkened [due to the hardships she endured while taking care of her children alone and she found no need to adorn herself since she did not remarry] shall on the Day of Qiyamah [some narrations have the words in Jannah] be like these two [joining between the index and middle fingers]. A woman of rank and beauty who has been bereft of her husband and devotes herself to her fatherless children till they [grow up and are able to live on their own] or pass away”
[Ref: Sunan Abi Dawud, Hadith: 5106 and Musnad Ahmad, vol. 6 pg. 29. Also see Ma’alimus Sunan and ‘Awnul Ma’bud; Also see : Musannaf ‘Abdur Razzaq, Hadith: 20591 for a similar report which has irsaal in it. Via hadithanswers website ]