Hadith 31-233

وَبِإِسْنادِهِ عَنْ عَلِيٍّ قالَ: قالَ رَسُولَ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَآلِهِ: خُلِقَت يا عَلِيُّ مِن شَجَرَةٍ خُلِقَت مِنْها، أَنَا أَصلُها وَأَنْتَ فَرعُها وَالحُسَيْن وَالحَسَن أَغصانُها وَمُحِبُّونا وَرَقُها، فَمَنْ تَعَلَّقَ بِشَي‏ءٍ مِنْها أَدخَلَهُ اللَّه عَزَّ وَجَلَّ الجَنَّة.

According to the same documentation, on the authority of Ali (a.s.), God’s Prophet (S) said, “O Ali! God created you from the tree of which I am the root, and you are the trunk. Al-Hassan and Al-Husayn are its branches. Those who love us are the leafs. The Honorable the Exalted God will take to Paradise whoever grabs onto any of the branches!”