These journeys helped to unify the scattered Karaite communities.

Besides his Biblical works, Salman composed a poetical treatise against the Rabbinite theories.

To this book, which was written in Hebrew, Salman gave the title, "The Wars of the Lord." Sahal, the son of Mazliach, on the other hand, was a native of the Holy Land, and though an eager polemical writer against the Rabbinites, he bore a smaller part than Salman in the practical development of Karaism.
His "Hebrew Grammar" (_Sefer Dikduk_) and his Lexicon (_Leshon Limmudim_) were very popular.

Unlike the work of other Karaites, Joseph al-Bazir's writings were philosophical, and had no philological value.
He was an adherent of the Mohammedan theological method known as the Kalam, and wrote mostly in Arabic.

Another Karaite of the same period, Hassan, the son of Mashiach, was the one who impelled Saadiah to throw off all reserves and enter the lists as a champion of Rabbinism.