The Emissary from Tanukh and the Three Signs

Shaykh Yasir Qadhi explains:

❧A second approach to Heraclius

The lecture returns to Heraclius through a report preserved in Musnad Aḥmad. The shaykh presents it as a later exchange connected to the earlier letter carried by Diḥyah al-Kalbī. Heraclius gathered his bishops and priests behind locked doors, told them that the Prophet ﷺ had invited him to faith, payment for peace, or war, and said that their own scriptures pointed to a coming authority beneath their feet. When they recoiled at the thought of following a messenger from the Ḥijāz, he withdrew the proposal and called it a test of their loyalty.

❧Three signs for an unnamed envoy

Heraclius then selected an Arabic-speaking Christian Arab from Tanūkh to carry a letter and secretly observe three things. Would the Prophet ﷺ mention his prior letters to rulers? Would he say anything about night or darkness while answering the letter? And did he have an unusual mark on his back? The envoy's name is not preserved; the shaykh notes differing reports about whether he later embraced Islam.

❧First and second confirmations

At Tabūk, before opening Heraclius's message, the Prophet ﷺ spoke to the envoy about letters sent to Khusrau, the Najāshī's successor, and Heraclius. The shaykh explains that the latter two references concern rulers after the well-known righteous Najāshī: one letter had been torn up and one had been preserved. The envoy marked the first sign. Muʿāwiyah then read the letter's question: if Paradise is as vast as the heavens and earth, where is Hell? The Prophet ﷺ answered by comparing it to the relation of night and day, giving the envoy the second sign he had been instructed to hear.

❧The rights of an envoy

The Prophet ﷺ told him that a messenger has a right to hospitality, while apologizing that the travelling army had no gift at hand. ʿUthmān ibn ʿAffān supplied a yellow garment from his own tent, and an Anṣārī hosted the envoy overnight. The shaykh draws attention to this as an example of political courtesy kept even in a sparse camp.

❧The seal and the completed test

As the envoy prepared to leave, the Prophet ﷺ called him back, exposed the area between his shoulder blades, and directed him to inspect what his master had asked about. The man saw the seal of prophethood and returned with all three observations. The shaykh calls the report one of the most striking Tabūk narratives: an imperial test arranged in secret, answered before its purpose was disclosed.