Briefly.
Wansborough is often considered as being an Orientalist, it is an easy 'one size fits all' label which can be conveniently deployed against individuals seeking to examine the various elements which make up what is now understood to constitute Islam.
Well, you must be in touch then with people who have no idea what an academic research entails, who qualifies as an academic and who doesn't.
Claiming that Wansbrough (it is not Wansb
orough) fits into the description of an "Orientalist" is as riciculous as one can get.
His ideas and approach are not interisting because they are criticized. They are interesting because of being a different approach.
He hasn't helped to "move Islamic studies forward significantly". He just provided for an other approach and like I said, he could not provide for any evidence. Other like Patricia Crone have no such evidence either. Theories ad suggestions are good, solidly underscoring them is an other thing.
You seem to think that it is enough to follow a path that somewhat differs from others to be "significant". Sadly, that is not the case, interesting as such approaches may be. You also seem to think such people have more expertise than all others working in the field. (I wonder how you come to all such strange conclusions).
ibn ishaq doesn't mention any other hadith then what can be found in the currently existing Hadith compilations. The novelty of his work was that he incorporated them into the text of what later would be regarded as the first biography of Muhammed, which means: He is regarded as the one who was much more complete in this than for exapmle ibn zubair, ibn abu bakr, ibn umar and others (names one encounters often in the isnad preceding a hadith).
It is highly questionable how much of his original work is reproduced in what is commonly known as the sira, containing extracts of his life-work, a world history in four volumes. Starting with the creation of the world, over the early prophets (Adam to Jesus), the second volume was dedicated to the life of the Prophet Muhammed until the hidjra, the third covering the Medinian period and the fourth the Caliphs.
Of this vast work only sections are preserved. The last volume is almost completely lost, from the first volume long excerpts are cited by later authors (where obviously parallel text reading is needed), second and third part are thought to be almost completely preserved.
Many question if there ever was more than one manuscript of the whole work. ibn ishaq used to cite out of his work to students, who then wrote everything down and iut is through that material the work got preserved by later citations in other author's works.
One of them was abd al-malik ibn hisjaam (died circa 830AD in Egypt) who edited and published the material of ibn ishaq concerning the Prophet Muhammed. Not without adding own material or letting out what he found unacceptable, for some reason. (All that becomes clear when reading at-tabari on the same subjects) .
So what now is taken for ibn ishaq's work can be questioned on its authenticity, and for all of the above cited reasons and more. (It is the version of ibn hisjaam that is the most widely spread and known.)
Time-liked references refers to influences of the societies where a certain hadith saw life, was transmitted orally before being noted, before and up to being researched upon the validity of its isnad and its evaluation.
Everything inevitably happens within the frame of its time-period. It is no novelty nor should it be surprising that tales about a revered person, his time and everything and everyone related to that undergo these influences.
And lastly, regarding the individuals that I mentioned in an earlier posting who I described as being puzzled by the notion of a textual history for the Koran. I can not name those individuals (obviously) - but I would ask you to accept that I work within a context where these issues and questions are considered and debated constantly.
What context?
Every Muslim knows the written edition of Al Qur'an has a history, but that is not what I refer to. Or do you think I could write a doctorate on that. It was somewhat more complex and time consuming.
salaam.