Combining two prayers while travelling: Abu Hanifah said doing so does not suffice him

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that Sayyiduna Umar (may Allah be pleased with him) acquired a piece of land at Khaybar. He came to the Prophet (peace and blessings be upon him), asked him about that land, and said: "I have acquired land at Khaybar such that, in my view, I have never acquired wealth better than it. What do you command me?" He (peace and blessings be upon him) said: "If you wish, hold back its principal and give it (that is, its yield) in charity." The narrator said: So Sayyiduna Umar gave it in charity, with this difference remaining: that its principal was not to be sold or given away, nor was it to be inherited. So Sayyiduna Umar gave it (its yield) in charity to the poor, to relatives, for the freeing of slaves, in the path of Allah, and to travellers and guests. There is no harm in the one who is the guardian of the endowment eating from the endowment himself in a fair manner, or feeding a friend, without accumulating wealth from it.

Ibn Tawus reports from his father that Hujr al-Madari informed me that from the charity (land) of the Prophet (peace and blessings be upon him), his family would eat in a recognised way, not an objectionable one. It is mentioned that the view of (Imam) Abu Hanifah is: The heirs have the right to take back an endowment.