Sunan Ibn Majah, Hadith No. 257
“yani phir aap ke masail kaise hal hon, aap ka kaam kaise bane, is ke liye hadith mein maujood hai bohat acha jawab ke man ja'alahum muhammadan wahidan hamma akhiratihi kaffahu allahu anhum fi ad-dunya. yani jo shakhs Allah ko apna concern bana lega to Allah us ki tamam zarooraton ke liye kafi ho jayega. yani aap d”