Note 225 — Chapter XIV · The Saffārides and the Rise of the Sāmānides
Reading edition
This point is not made clear by Persian historians. The Saffārides had by their victories become masters of all the provinces ruled by the Tāhirides, of which Transoxiana was certainly one. It is hard to conceive either that they should have renounced their claim on Transoxiana, or that the feeble Caliph should have taken upon himself to pronounce the Samānīdes independent of Khorāsān.