Hadith.5538 - Muhammad ibn Ya'qub Al-Kulayni, may Allah (swt) be pleased with him, narrated from Ahmad ibn Muhammad Al-'Asimi from Ali ibn Al-Hasan Al-Mithami from Al-Hasan ibn Ali ibn Yusuf from Mathanna ibn Al-Walid from Muhammad ibn Muslim from Abu Abdullah (as), who was asked about a man who appointed another man as the guardian over his children and their wealth. He also permitted him, in his will, to invest the wealth with the profit being shared between him and the children. Imam (as) said: "There is no harm in that because their father had granted him permission to do so while he was alive."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.5539 - Ibn Abi Umayr narrated from Abdur Rahman ibn Al-Hajjaj from Khalid Al-Taweel, who said: My father called me when death approached him and said: "O' my son, take charge of your younger brothers' wealth, invest it, take half of the profit for yourself, and give them the other half. You are not liable for any loss." After my father's death, my father's concubine brought me before Ibn Abi Layla and said: "This man is consuming the wealth of my children." I explained to him what my father had instructed me to do. Ibn Abi Layla said: "If your father commanded you with something invalid, I will not permit it." Then he had me testify that if I used the wealth, I would be liable for it. Later, I went to Abu Abdullah (as), and narrated my story to him. I then asked: "What do you say about this matter?" Imam (as) said: "As for the ruling of Ibn Abi Layla, I cannot overturn it. But as for what is between you and Allah (swt), the Almighty and Glorious, you are not liable."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.