▁Later , ▁they ▁came ▁across ▁a ▁char ism atic ▁man ▁in ▁that ▁land , ▁whom ▁could ▁cause ▁the ▁ground ▁that ▁he ▁stood ▁on ▁to ▁grow ▁grass . ▁That ▁man ▁is ▁none ▁other ▁than ▁N abi y ul lah ▁Kh id ir . ▁In ▁the ▁story , ▁they ▁followed ▁him ▁and ▁converted ▁to ▁Islam , ▁and ▁multip lied ▁into ▁a ▁group ▁of ▁people . ▁When ▁they ▁studied ▁religion ▁in ▁a ▁particular ▁region ▁together ▁with ▁their ▁teacher , ▁N abi y ul lah ▁Kh id ir , ▁grass ▁would ▁begin ▁to ▁grow ▁from ▁the ▁ground ▁and ▁thus ▁they ▁are ▁referred ▁to ▁as ▁Bak ump ai ▁people . ▁ ▁The ▁Bak ump ai ▁people ▁once ▁had ▁a ▁kingdom ▁that ▁is ▁much ▁older ▁than ▁the ▁kingdom s ▁of ▁the ▁Ban jar ▁region , ▁but ▁because ▁of ▁super natural ▁ab ilities ▁the ▁kingdom ▁had ▁to ▁be ▁re located ▁to ▁the ▁Bar ito ▁River ▁and ▁its ▁king ▁is ▁known ▁with ▁the ▁name ▁Dat uk ▁Bar ito . ▁From ▁Mar ab ah an , ▁they ▁spread ▁to ▁the ▁streams ▁of ▁Bar ito ▁River . ▁According ▁to ▁local ▁fol kl ore , ▁there ▁is ▁an ▁area ▁in ▁Mur ung ▁R aya ▁Reg ency ▁called ▁Mu ara ▁U nt u ▁where ▁in ▁the ▁beginning ▁it ▁was ▁a ▁j ung le ▁controlled ▁by ▁a ▁race ▁of ▁j inn ▁named ▁U nt u . ▁Later ▁there ▁was ▁a ▁Bak ump ai ▁man ▁named , ▁R ag hu y ▁who ▁tra ve led ▁and ▁lived ▁there . ▁Until ▁today ▁if ▁observed ▁from ▁the ▁line age