I want to know the authentication of the the hadith as said by people " in order to gain ilm go to China also"

The Hadith, 'Seek knowledge even though it be in China.' narrated by Bayhaqi%0D%0Ais classified as Hasan lighayrihi by some Muhadditheen, ibn Abdul Barr and a%0D%0Afew others. (Ahsanul Fataawah vol.1 pg.433; HM Saeed)%0D%0A%0D%0ANabi (Sallallaahu Alayhi Wasallam) explains, 'True Ilm (knowledge) is only%0D%0A3. a) The clear verses (of the Qur'aan), 2) The Sunnah (Ahaadith), 3) The%0D%0Aobligation (of Deen). All (other knowledge) besides these are but an extra.'%0D%0A(Hayaatus Sahaaba vol.3 pg.252; Maktabatul Ilm). Ibn Umar (Radhiallaahu%0D%0AAnhu), the eminent companion of Rasul (Sallallaahu Alayhi Wasallam) says. It%0D%0A(Ilm) is the book of Allah and Sunnah of His Prophet (Sallallaahu Alayhi%0D%0AWasallam). Whosoever includes anything to this, of his own I know not,%0D%0Awhether this will be recorded among his good or bad deeds.' (Ibid with%0D%0Areference to Ibn Abdul Barr)%0D%0A%0D%0AIn view of the above Ahaadith and many more similar, the Ulama have stated:%0D%0AIlm is only that which is attained from the Ambiyaa (Prophets) by way of%0D%0Alearning and teaching Ilm-e-Shari'ah. (Allaamah Badruddin Aini; Ahsanul%0D%0AFataawa vol.1 pg.462 vol.1 pg.462; HM Saeed).%0D%0A%0D%0Aand Allah Ta'ala Knows Best%0D%0A%0D%0AMufti Ebrahim Desai%0D%0AFATWA DEPT.