"Al-Layth Ibn Sa'd: the Imaam of the Egyptians". islamweb.net. "Al-Layth had high aspirations to learn. For him, learning in Egypt alone was not sufficient. In 113, A.H., he decided to travel to Hijaaz to perform Hajj and seek knowledge. He was twenty years old at that time. In Makkah and Al-Madeenah, which were considered the most outstanding sources of religious knowledge in the Muslim World, Al-Layth started to learn from a unique group of scholars of jurisprudence and Hadeeth."
"Al-Layth Ibn Sa'd: the Imaam of the Egyptians". islamweb.net. "When he went to Baghdad in 161 A.H. in order to teach, though he was over sixty five years old, he asked about the house of the great scholar Hushaym Ibn Basheer who was the master of Hadeeth scholars in Iraq. Al-Layth asked Hushaym to send him some of his books to study them. When Hushaym did, Imaam Al-Layth started to read through their valuable and priceless information."
Al-Lâlakâ'î, Sharh Usûl ‘I'tiqâd Ahl Al-Sunnah Vol.1 p228; Ibn Battah, Al-Ibânah Al-Kubrâ Vol2. P175; Ibn Al-Jawzî, Talbîs Iblîs p14.
"Imām Layth b. Sa‘d". alternativeentertainment.wordpress.com. "He didn’t just give in charity but he would also give many gifts to the people of ‘ilm and students etc. They said that when he heard of some kind of problems that the scholars had fallen into etc, he’d get money to them. The house of ibn Lahī‘ah burnt down so he sent him 1000 dinars. Imām Mālik wrote to him once asking for the best saffron from Egypt for his daughter’s wedding – they said he sent 30 camel loads! The historians then also said that Mālik used all he could with his family and sold all the rest for hundreds of dinars! And Allah knows best... ... His scribe said, 'I stayed with him twenty years and never saw him eat alone.'"