al-Kafi ...
al-Kafi , narrating from Salih ibn ‘Aqabah who said: “I heard the ‘Righteous Servant’ [Imam al-Kazim] (a.s.) say: “It is a recommended practice for a child to play in his childhood so that he becomes patient in his adult age.” Then he said: “It is not right to do otherwise.” It also narrated that the most intelligent of children are those who hate schooling the most.[^4] مَدحُ عَرامَةِ الصَّبِيِ رسول الله صلى الله عليه وآله: عَرامَةُ الصَّبيّ في صِغَرِهِ زِيادَةٌ في عَقلِهِ في كِبَرِهِ.
If he became prosperous then that is good, but if not, he is among those in whom there is no good.”[^5] 378. Imam al-Sajjad (a.s.) said: “The Prophet (s.a.w.) said to the two [Hasan and Husayn] (a.s.): “Stand up and wrestle each other.” They stood up to wrestle when Fatimah (a.s.) who had gone out for some needs had come back home and heard the Prophet (s.a.w.) saying: “Again, O Hasan! Take Husayn firmly and knock him down!” So she said to her father: “O father, what a wonder!
Do you encourage one against the other? Do you encourage the elder against the younger?” Then he (s.a.w.) said to her: “O daughter! Are you not happy that I say: “O Hasan! Take Husayn firmly and knock him down,” while my beloved Gabriel is saying: “O Husayn! Take Hasan firmly and knock him down?”[^6] 379.
al-Mu’jam al-Kabir, narrating from Abu Ayub al-Ansari who said: “I went to the Messenger of Allah (s.a.w.) while Hasan and Husayn were sitting in front of him on his lap playing, so I said: “O Messenger of Allah! Do you love them?” He said: “How can I not love them and they are my two basils that I scent in this world.”[^7] 380. al-Mu’jam al-Kabir , narrating from Abu Sa’id who said: “The Messenger of Allah (s.a.w.) was praying when Husayn (a.s.) came in and took hold of the Prophet’s neck.
Then he (s.a.w.) stood up and held Husayn’s hand and kept on holding it until he went to bow.”[^8] 381.