Senegalese writer and teacher who was one of the founders of African prose fiction in French. Sadji was the son of a marabout (Muslim holy man) and attended Qurʾānic school before entering the colonial school system. He was graduated from the William Ponty teacher training college in 1929 and took a bachelor's degree three years later.

His early writings appeared locally in the 1940s. The story “Tounka,” which dealt with the original migrations that had brought Sadji's people to the sea, later became the title story for a book of short stories, Tounka, nouvelle (1965; Tounka, a Novella). A determination to preserve traditional oral lore was also at work in La Belle Histoire de Leuk-le-Lièvre (1953; “The Splendid History of Leuk-the-Hare”), which he co-authored with Léopold Senghor.

Sadji's two novels—Maïmouna: petite fille noire (1953; “Maïmouna: Little Black Girl”) and Nini, mulâtresse du Sénégal (1954; “Nini, Mulatress of Senegal”)—focus on heroines who become victims of urban society. These works are filled with shrewd observations and warm compassion for the writer's fellow Africans.

Sadji's last piece of fiction, which many also regard as his best, is a 50-page story entitled “Modou-Fatim” (1960), in which he describes the plight of a peasant who has to leave his land during the dry season to work in Dakar.